Organic electroluminescence device

Details Organic electroluminescence device Organic electroluminescence device

1994-03-29

1996-04-02

Ryan, Patrick J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

428213, 428690, 428917, 313504, 313506, B32B 702

Patent

active

055039103

ABSTRACT:
An organic electroluminescence device comprises the first light emitting layer containing an organic compound having a fluorescence peak wave length of 380 nm or longer to shorter than 480 nm in solid state and the second light emitting layer containing an organic compound having a fluorescence peak wave length of 480 nm or longer to shorter than 580 nm in solid state. One of the first light emitting layer and the second light emitting layer contains an organic compound having a fluorescence peak wave length of 580 nm or longer to 650 nm or shorter in solution state. The device has a structure in which the first light emitting layer and the second light emitting layer are laminated on the anode in this order and both of these layers emit light by application of an electric field. This device shows light emission, particularly white light emission, with high efficiency and excellent stability.

REFERENCES:
patent: 5126214 (1992-06-01), Tokailin et al.
patent: 5283132 (1994-02-01), Ogura et al.
patent: 5294810 (1994-03-01), Egusa et al.
patent: 5294869 (1994-03-01), Tang et al.
patent: 5405709 (1995-04-01), Littman et al.

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